Aerospike Engines - Why Aren't We Using them Now?


Moodymongul
Moodymongul

Imagine being in charge of allocating NASA budget (or any large business budget). Do you spend decades and Billions on engine research (which may or may not work). Which will also pollute and eat fuel at unbelievable levels (fuel that could be used better elsewhere). Or, do you wait for the well proven/researched technology of nano thread (diamond/carbon filament) and wait for the first space elevators. I think a lot of 'big money' types are looking at investing in filaments not dead-end technology like rockets (which have not improved since the 18th century). Nothing beats the old tech of ram jet/pulse detonation engines anyway ;) My 2 cents.

Vor 14 Stunden
Francesco Smerilli
Francesco Smerilli

Good job sir, very informative video, ty.

Vor 17 Stunden
Peekofwar
Peekofwar

Aerospikes... Get your ***** to mars!

Vor Tag
Priyo Subekti
Priyo Subekti

Is he wearing batik?

Vor Tag
Political Foolishness
Political Foolishness

It was smooth sailing for me in this video until you said "returning to the moon". That is where an element of uncertainty crept in. Not saying moon landings didn't happen, but I've shifted my beliefs over time to saying that it was significantly more improbable than I first assumed. If I had to place a bet on did they or didn't they, I would bet they didn't go to the moon. Call me foolish if you want.

Vor Tag
HAND FUN!
HAND FUN!

LMT corruption strikes again.

Vor Tag
SHERMAN W. BRAITHWAITE
SHERMAN W. BRAITHWAITE

http://www.aewcac.com/

Vor 2 Tage
itchytastyurr
itchytastyurr

use a rocket combined with a solid balloon. the rocket would inadvertedly superheat the air within the balloon (think shape like a sqid/jellyfish) for lighter payload and when it reaches space you let the air purge in the space vacuum and seal it off. then it can bob in the top most atmosphere without need of orbital speed if need be and when you want to come back down, just allow the balloon to take in atmosphere (the balloon now holding a vacuum, well let air leak in as appose to leak out) until its internal preasure meets required amount to decend but cap it off so its so thin that it will float slower and slower to earth as the surrounding air gets denser and hevier.

Vor 2 Tage
MrTony0188
MrTony0188

This kind of thing annoys me, once again progress is halted by people and companies not wanting to take risks.

Vor 2 Tage
Roeland Voogd
Roeland Voogd

If you americans should use the metric system the numbers of atmosferic pressure were much simpler: 1 kg / square cm . So much for rocket science.

Vor 2 Tage
JustAnotherPerson
JustAnotherPerson

Big thumbs up! I learned so much from this video. Thank you!

Vor 3 Tage
Wrapped01
Wrapped01

Thank you Space Varys this was informative :)

Vor 3 Tage
Awes9me Me
Awes9me Me

This was amazing

Vor 3 Tage
zpetar
zpetar

2:42 1" sq isn't 2.54 cm sq. Basic math: 1" sq 1^2=1x1=1 1" = 2.54cm 1" sq = 2.54x2.54 cm = 6.4516 cm sq When somebody is talking about science stuff they should get basics right in 1st place.

Vor 4 Tage
Shmoo Stead
Shmoo Stead

http://en.wikipedia.org/wiki/Aerospike_engine

Vor 4 Tage
Ernie Risners
Ernie Risners

Thanks

Vor 5 Tage
Blurns
Blurns

You're a bell nozzle.

Vor 5 Tage
Jeremy Sumbler
Jeremy Sumbler

First you'll have to help every e unders tyand how a rocket can emit gases is a zero pressure vacuum environment. Second, did the SR71 blackbird use this engine?

Vor 5 Tage
ShatNdd
ShatNdd

Can someone explain me why don't they use variable Bell nozzle? It could be so beautiful engineered. They could just make disconnectable (or burnable) lower Bell rings. Ring by ring should be disconnected (burned away) by switching off internal cooling lines or somehow else in controllable and safe way. The remaining bell nozzle would become more spread out for lower atmospheric pressure for that altitude rocket reaches by that time.

Vor 5 Tage
Stewart James
Stewart James

However

Vor 5 Tage
James walker
James walker

Build my GBFSS. Great Big Fuckin' Sling Shot..

Vor 6 Tage
Joel McManus
Joel McManus

When I was employed at Rocketdyne I worked on the design of this beautiful rocket engine!

Vor 7 Tage
El Mahdi Ettaleb
El Mahdi Ettaleb

Having multiple stages is mostly a way to drop dead weight, not about engine ISP. When you burn through your fuel, more and more of the fuel tank is empty, and the empty section plays no role whatsoever in pushing the payload, instead only being dead mass, thus them being dropped.

Vor 7 Tage
Tyrion Lannister
Tyrion Lannister

You remind me of varys

Vor 7 Tage
Keith Knoesel
Keith Knoesel

Great information, well done

Vor 8 Tage
callen clarke
callen clarke

Excellent content. Thank you for making the internet more informative.

Vor 8 Tage
Guillaume Lemaigre
Guillaume Lemaigre

Why do i see the tittle and the description in french ?

Vor 8 Tage
daniel kenny
daniel kenny

So Capital doesn't innovate? Somebody needs to tell the Americans. All jokes aside, good information.

Vor 8 Tage
Albert Torres
Albert Torres

Why are they still u s ing rockets when we have higher technology? We have gravitational lift engine's that work in outer space and could easily be used to go to Mars. Instead of rockets prehistoric technology. Hell even I know how to use mechanical gravity engine's.

Vor 9 Tage
Eric Kirklin
Eric Kirklin

You are an idoit this is simple math that WE learned in highschool

Vor 9 Tage
Camden Osborn
Camden Osborn

intriguing

Vor 9 Tage
James Cn
James Cn

GREAT explanation !!! Very good !!!

Vor 9 Tage
Tony Fleming
Tony Fleming

Thank you! Very easy to watch persona, moreeee please Sir!

Vor 9 Tage
Orlando Teledeiro
Orlando Teledeiro

видео на английском, нахуя его подписывать на русском?

Vor 10 Tage
bes1batch1976
bes1batch1976

See david adair bldg rocket engine st the age of 17 in the 70s this is obselete tech fake world for the masses

Vor 10 Tage
joe dollar
joe dollar

GI joe had a x-33

Vor 11 Tage
Alrighty Then
Alrighty Then

You seriously have the greatest narrating voice ever!

Vor 11 Tage
Tuffenough4u
Tuffenough4u

Mean while... "in real life"... all forms of conventional nozzle liquid fueled rockets have become completely obsolete and have been for years as black budget programs progress with things like antigravitics on craft like the old TR3B for example. The funniest thing is a lot of the higher ranking front men within public ran organizations like NASA "thought to be the smarter and looked up to" will call you a nut case for mentioning something like this due to their lack of understanding or proof of it while the world gives them praise for their positions. Ironically the same sorta old bastards will simultaneously understand what a "black budget" is.... That being said, I have to step back and say,... Get real ass clowns , this old NASA crap tech isn't worth fooling with since the 70's, hence why it's under represented and and constantly de-funded for a reason, yet here we are talking about upgrading something that is already outdated by half a century. This is the same thing as trying to compete with a jet using a car. You can upgrade the car all you want, but at the end of the day you aren't fly anywhere. The biggest problem is the vast majority of dumb ass TV watching civilians and some of the lead morons they purposely inject into their programs as "PR speak heads" for an organization that has duped them into believing their work is important and tricked them into believing their BS is state of the art equipment. Thank Elites! This space program bullshit is a joke and some of us know it. The guy in this video seems like an intelligent individual, but if he cares enough to post a video this detailed on such a subject then maybe he should consider where we really are before wasting more peoples time with outdated material that only seems interesting to those who don't know any better.

Vor 11 Tage
Ripman
Ripman

http://www.arcaspace.com is on the way to do some things with this engine....I know....costs....and it`s slow development, you can support them on Patreon. they have a facility in Romania (European Union) where they are building the components.

Vor 12 Tage
drcampbell48
drcampbell48

This guy doesn't have a clue how a rocket engine generates thrust. NOT A CLUE!

Vor 12 Tage
Brendan Wood
Brendan Wood

The waves because the pitch angle for hyper-sonic flight has a very fine tolerance. So when velocity increases the aircraft/spaceship will always climb up to the point where the engines can't breath. But then the atmosphere becomes so thin that the tolerance on pitch angle goes up enabling RCS maneuvering and adjustment in the pitch angle to re-enter the atmosphere. Gravity does the rest. Then the new intake air accelerates the craft to a higher velocity than the previous wave and the cycle continues until there is a final orbital insertion burn using oxidizer.

Vor 12 Tage
Brendan Wood
Brendan Wood

There is another kind of aerospike engine where the central column is a thrust nozzle as well. The perimeter thrust nozzles are designed to compress the central column of thrust into a spike. However, instead of being a pure rocket or pure jet engine, there is a hybrid option. The hybrid aerospike, or linear aerospike, can use intake air compressed through an intake manifold with or without turbines. This type can substitute oxidizer with atmospheric oxygen. Using the aerospike to achieve the high ISP at sea level required to get off the ground. Later in flight closing the intake manifold and switching to on-board oxygen. This type could also be configured for hyper-sonic flight by using a longer launch trajectory to utilize the thin air at the top of the atmosphere. Instead of a smooth curve, using a wave pattern to dive into the air and climb back up to the edge of space. Each dip gaining more velocity with a ramjet aerospike. A potential third configuration could use intake air bleed to fill the oxidizer tanks during hyper-sonic flight stage. The ideal configuration would combine this with the potential of nuclear aerospike engines which would eliminate the need for liquid fuel and only require a fuel which could be atmosphere. This option would however only make sense for a last ditch effort to leave earth because it would surely cause cancer and mutations after launch.

Vor 12 Tage
Brendan Wood
Brendan Wood

Classified; Top Secret.

Vor 12 Tage
William Lemmond
William Lemmond

This is wonderful, and I look forward to sharing this and others of your videos at the Hack RVA workshop club. But I, myself, am too old and poor to match well with your overall program. Sorry.

Vor 12 Tage
Jack Hagerty
Jack Hagerty

This is the exact thing NASA should be doing, the basic design and development without any concerns on RoI (return on investment). Once they've got the major kinks out of the system, they can turn it over to the commercial companies to adapt.

Vor 12 Tage
Michael Southcott
Michael Southcott

What is interesting is this. The value of research, testing and implementation of experimental and emerging technology is demonstrated in the resistance by commercial companies to use the aerospike engine. This video and the one explaining why the X-33 was canceled shows the importance of having the right people to lead major technological based agencies. It is futile for me to blame politicians or even the project leaders and engineers on failures like this. They are chosen by the people to carefully spend the tax dollars they are entrusted with. The NASA director at the time emphasized the crucial importance of integrating the composite design of the fuel tanks as a necessary aspect of the research and yet the other technologies involving the engine design are crucial today. The fact that the air force had more faith in the  x-33 project than congress proves that political prejudices hampered advancement.

Vor 13 Tage
Michael Southcott
Michael Southcott

It also means that right now a major project must integrate aerospike engines into their design. For commercial companies like Ariane, SpaceX and others as well as the main NASA based contracted rocket designers to integrate the design into their human and sensitive payload launch systems a fully vetted rocket system must be implemented on at least one system.

Vor 13 Tage
Aaron Schwarz
Aaron Schwarz

Yo SpaceX are you watching this ? Aerospike engine design ?

Vor 13 Tage
kilulafo
kilulafo

Wow, I really hadn't pegged the Naboo of all people as the ones with realistic spaceships.

Vor 13 Tage
mntnrder
mntnrder

SR-71

Vor 13 Tage
keith courson
keith courson

That's what I'm talking about kids.  Math and Science!

Vor 14 Tage
Satoshi Nakamoto
Satoshi Nakamoto

I created a small aerospike engine for my model jetfighter and I will say it is very very efficient that I get 40% longer flight time and a horrific of thrust to the point of tearing the jetfighter to pieces so I tune the fuel input down to the old engine would consume and I have a 60% flight time with incredible thrust & very sharp movement for the turning. The Aerospike Engine is not a toy in any sort of imagination, the thrust & efficiency is mind-boggling.

Vor 14 Tage
Malcolm Hughes
Malcolm Hughes

the race to the moon will be back on as the Chinese want to prove america was full of shit about landing in the first place and america will want to get there first to claim the moon for realsies this time so commies don't get it.

Vor 15 Tage
j a k e
j a k e

Outstanding presentation!

Vor 15 Tage
Optical Clarity
Optical Clarity

1 square inch is ~6.45 cm

Vor 15 Tage
dale carpenter
dale carpenter

When it goes to commercial use the prices will drop ! Unless they get greedy like the commercial airlines !

Vor 16 Tage
Buck Otte
Buck Otte

perhaps an adaption of the aero spike idea could help jet engine performance--

Vor 16 Tage
Energene2310
Energene2310

Why don't we use a nuclear power plant to produce an electro-magnetic field around the ship to cancel gravity, no solid fuel, no booster tanks.

Vor 16 Tage
Lexi Pryde
Lexi Pryde

i can say with complete confidence whoever opens the way for aerospikes stands to make alot in the way of profit by sheer speed of launch and relaunch by reduced prep and rebuilding alone

Vor 16 Tage
Noob 1
Noob 1

OMG ITS MR CLEAN 0:28

Vor 16 Tage
TheSaintST1
TheSaintST1

You just need to mention Lockheed Martin and you just know this is going... and the money....

Vor 16 Tage
seth Thomas
seth Thomas

Likely the reason why they contracted Northrop Grumman to make Hubbles replacement.

Vor 12 Tage
csorrows
csorrows

01:21 This has nothing to do with rockets or engines. This is NASA's cloud machine that creates rain. What a fail.

Vor 16 Tage
eggaweb
eggaweb

1 square inch = 2.54cm X 2.54cm = 6.45 square cm. Or you could just say 1.03 KG per square cm.

Vor 16 Tage
Greg Man
Greg Man

Butterbean!

Vor 17 Tage
Clark Magnuson
Clark Magnuson

Great vid. I am an electronics engineer and in 1986 I was loaned to Rocket Research for a Midget Man side thruster proposal and later for an arc-jet concept proposal. The rocket biz seems to never change while electronics changes fast.

Vor 17 Tage
Donald seemayer
Donald seemayer

Great video . Thank you .

Vor 17 Tage
Chip Douglas
Chip Douglas

believe nothing this evil man says

Vor 17 Tage
sushanalone
sushanalone

Oh Hello Varys's Astronomer Cousin..

Vor 18 Tage
The Captain
The Captain

Very good video, so well done. No stumbling around, very clear agenda and flawless execution. We need more youtubers like you.

Vor 18 Tage
dpsamu2000
dpsamu2000

Since stages on large rockets are dropped anyway to get rid of weight the upper stage nozzles are optimized for the altitude where they are used. This relegates the potential market for the aero spike to smaller reusable ssto rockets. Even then there are significant market forces against it not directly related to the equipment. Betamax and VHS is an example. Betamax was better but VHS gave video recording machines to movie studios to market their libraries. That produced the whole video rental market in VHS. Betamax was better but was obsolete as soon as it came out. They are now both obsolete having been supplanted by more advanced digital. The bell rocket is not only tried and tested but the machines to make them are already paid for, the people who make them are already trained, and the companies that make them already exist. The aero spike is obsolete. The bell will remain until a more advanced launch technique, possibly electric catapult, renders it obsolete too. Of course if aero spike uses, or develops, a novel manufacturing technique, possibly printed parts, that substantially reduces the cost to manufacture that may change.

Vor 18 Tage
David White
David White

Excellent video, well done👍

Vor 18 Tage
Squodgamullis
Squodgamullis

I'd love to see a video on Skylon! Have you already made one? If Reaction Engines (and their investors from the US) succeed, we'll finally have an actual SSTO.

Vor 18 Tage
SpaceFish
SpaceFish

Earth is flat.

Vor 19 Tage
M Ellis
M Ellis

Another reason Space X did not use Aerospike engines is the use of Supersonic retro braking. Clustering the engines creates a larger frontal area on re-entry. Furthermore, clustering the thrust cone would be better for creating a larger re-entry thrust balloon. This thrust balloon being larger creates a much larger virtual drag cocoon. The thrust acts like a big huge drag parachute. So for thrust down re-entry clusters are better. ... For Glide down re-entry or boost to altitude jets Aerospkes would be better.

Vor 19 Tage
M Ellis
M Ellis

I like your presentation. ... I think that the reason Aerospikes is not used is due to engine clusters and center engine throttling. Independantly they are out of pressure balance. However, by throttling the power output of the center engine it creates the effect of an Aerospike engine. Throttle center engine higher and outers lower and the thrust cone is better for high altitude. Throttle the outers high and the centers lower and the cumulative thrust cone is better for low altitude. .... This is why the Satrun 5 used the 4+1 configuration. Space X Falcon 9 does the same. ... The Russian platform used the same multi-engine concept .... So the system is based on cumulative thrust cone as opposed to just considering the single engine performance alone. ... I would imagine that rocket planes would be the ideal configuration for Aerospike because of their ability to be used in wing edges with low parasitic drag for glide back aerodynamics.

Vor 19 Tage
zimma23
zimma23

does any stupid motherfucker out ther believe this bullshit exept this guy? ? z.

Vor 19 Tage
jmiktutt
jmiktutt

"Has to make profit. That's why SpaceX isn't doing it." Meanwhile, el Hyperloop.... Yeah, that's gonna work.... Can we trade the Hyperloop for Aerospike rockets?

Vor 19 Tage
Ryan Francis
Ryan Francis

I love when you end up in a YouTube rabbit hole and stumble upon an informative video like such. I'll sit in this class all day long. Thanks! Subscribed.

Vor 19 Tage
Space noodles
Space noodles

This is sad

Vor 19 Tage
Shuggaloaf
Shuggaloaf

0:28 Today is Halloween. Still scariest thing I've seen.

Vor 20 Tage
Paul Scotchford
Paul Scotchford

Thanks for a great video, even though I never researched my curiosity I did wonder why rockets were multi staged.

Vor 21 Tag
Herpy Derpy
Herpy Derpy

why dont they just use the bell structure but the end of the nozzle constricts based on its altitude. Like ... ;/

Vor 21 Tag
Fly Oz
Fly Oz

Why didnt you give the answer up front "They couldnt be stuffed" ?

Vor 21 Tag
I am a walking Friend zone
I am a walking Friend zone

Varys?

Vor 21 Tag
Boris Pilipenko
Boris Pilipenko

A solid proof nobody ever went into space!

Vor 21 Tag
Animusreptor
Animusreptor

considering that there is a lot of research being done into "sci-fi" engine designs such as Ion drives and hyperspace travel, we will likely skip over using aerospike engines entirely

Vor 21 Tag
Felix Tymcik
Felix Tymcik

in @George Wang's discussion about whether government or private funding is better and Space-X taking the advantage of basic concepts being ready to use - don't forget, that at the time NASA did its great jobs there was huge competition (the main propellant for development), not between companies, but continents and political concepts – translated into government funding. We have a different world now, and private companies carry on to compete on a smaller scale (still big enough, think of the BFR). The Aerospike isn't dead, but development is slower in "peace" times. Sure a next World War would give technology a huge boost - but don't ask for it, only very few people would have the luck to take advantage of it - or survive to see it at all.

Vor 21 Tag
nbookie
nbookie

Trumps fault!

Vor 22 Tage
forum police
forum police

At first I thought this was gunna be another one space is fake we live under a dome flat earther conspiracy... My bad. But thank fk it wasn't

Vor 23 Tage
Alex Bashinskiy
Alex Bashinskiy

The way I see, accelerating a rocket to at least 1/4 of necessary orbital velocity and altitude of at least 20km would solve all of bell design inefficiencies as you skip that initial stage completely. There are ways to do it: StarTram Style, High altitude airplane launch, etc...

Vor 23 Tage
Miloš Radovanović
Miloš Radovanović

1 in^2 = (2.54cm)^2 = 6.4516 cm^2

Vor 23 Tage
Rev. Gunn
Rev. Gunn

Too much corporate and governmental corruption maybe?

Vor 24 Tage
ProjectsBlack
ProjectsBlack

Reaction Engines are building an engine for a SSTO space plane called SKYLON...Its a jet/rocket hybrid. Its backed by the British government and BAE systems. The engine did go top secret for a while. Its being built to replace the Space Shuttle.

Vor 24 Tage
Mad Calm
Mad Calm

The real rason of "why not ?" is that this type of engine is bound to single stage rockets which are inefficient as to real payload because emptied fuel tanks/volumes aren't discarded.

Vor 24 Tage
stuart cole
stuart cole

@9:46 Larg!? I’ve never heard large pronounced like that.

Vor 24 Tage
Nate Black
Nate Black

Nice job

Vor 24 Tage
EriashTV
EriashTV

You should totally replace the black background with some nice stars and galaxies backdrop :) Super informative video - thanks for uploading it.

Vor 24 Tage
Dean Y
Dean Y

I'm not a rocket scientist, lol, but all the scientists which are talking about climate change, I think are partly correct. Our planes and rockets I believe are doing more of the damage to the atmosphere than our vehicles, or for that matter other ground based co2 emitters. When 911 happened and all air traffic was halted for a week, the skies were a much darker blue, very noticeable if you were observant at that time. This means, the only thing that was not being put into the atmosphere was c02 from planes. The c02 taken up to where planes fly has less air pressure on it, probably coalesces ( gathers together ) up there and does all the damage, as opposed to ground based c02 which is filtered back to oxygen by plant life as well as marine plankton etc. The color of the atmosphere should have stayed the same if all the vehicles that were giving off all the co2in the world was affecting the atmosphere. After all they did not stop. But no, the blue color was much bluer, like when I was a kid 35 years ago. This tells me that the air pressure which you so eloquently spoke about keeps some c02close to the ground, though wind and other factors do probably factor in, enough of it is kept rather low to varying degrees. IF we want real climate change, and fast, I think the airplanes, and rockets have to change dramatically. This new (old) tech seems to be a way to reduce some of the C02 and be more efficient to boot. Why are we taxing the people when they have the tech to actually really do some major Co2 reduction that can actually make a difference, sitting on the shelf? We have to be nickle and dimed to death while big airline manufacturers are not doing anything? Governments don't push rockets and space travel to use this tech cause its too much money, while spending exorbitant amounts on military? Wow, we sure are stupid......🙄🤨😑

Vor 24 Tage
mike Lazembie
mike Lazembie

Your head is an aerospike!

Vor 24 Tage
NINTEN DO
NINTEN DO

Same like other good thing Tilera's 16core cpu in time of Intel386, Testa technology 200year back and much more what end in table socket under lock.. Fuq you murica is your maneer.. we just want to use that.. and dont wait naother 200 yaer when everything go out of control... Bcause traditional system failed..

Vor 25 Tage
Bob Veitch
Bob Veitch

Perhaps now that the shuttle has been retired, we may be working on a new one powered by these?????

Vor 25 Tage

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